Qustodian is an “advertising as a service” solution for registered users to receive personalised adverts, offers and coupons on their phones under their control and allowing them to monetize their preference data. It addresses the issue of people not wanting to receive interruptive advertising on their mobile phones, unlocking the potential of mobile advertising. To date we have run paid campaigns with over 100 international brands.

Management Team


Fernando Sanchez-Teran

Co-founder and CEO of Qustodian. Former Director and founding partner of Valoris, a leading consulting firm in Telecom & Media. 14 years experience in T&M industry and previous experience in investment banking (Lehman Brothers, Alpha Corporate) and FMCG (Procter & Gamble).


Marcos Menendez

Co-founder and COO of Qustodian. Previously a founding partner at Valoris with extensive experience in strategy, marketing and product development with Telco and Media companies in more than a dozen countries in EMEA and South America.


John Roberts

Co-founder and MD UK of Qustodian. 20 years experience in the mobile phone industry. Previously, John was Director of Retail at IDT Europe ($200m division) and launched 4 MVNOs across Europe, including the 1st on the Orange UK network.

Marketing Director

David Hueso

Previously: International Business Development at Lokku Ltd. (Nestoria), Manager at Valoris and Head of Finance Assistant at EON Bohemia

Head of UK Operations

Nick Baldwin

Experienced Operations & Project manager responsible for building 5 MVNOs across Europe. 15 years’ experience of product development & account management in Telecoms and Marketing sectors.

Sales Director UK

Amanda Singleton

16 years sales media sales experience. Previously managed Sales teams at Guardian News and Media and the Telegraph Media Group

Sales Director Spain

Jose Antonio Díaz de Villegas

Previously: Commercial Director of on-line advertising at GRUPO G&J and Head of Online Advertising at Hola

Head of Development

Raimon Malatesta

Experienced developer in Ruby on Rails environment

Don't See your Startup?

Create a free profile on Tech.London

Create a profile

List your startup

Be discovered in London’s tech & startup community by creating a company profile.

Startup listings for Tech.London are powered by Gust, the world’s largest platform in startup funding. You can update your profile at any time via the Gust dashboard.

You’ll also have a free account on Gust.com, where you can share your profile with investors to get funding.

Get started×


Get London tech news, jobs, and a preview of upcoming events straight to your inbox each week for free.

More in London